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<div class="title">D:/physi-tracklast/01/Android/PhysiTrack/src/graphview/compatible/ScaleGestureDetector.java</div>  </div>
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<a href="_scale_gesture_detector_8java.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="keyword">package </span>graphview.compatible;
<a name="l00002"></a>00002 
<a name="l00003"></a>00003 <span class="keyword">import</span> java.lang.reflect.Constructor;
<a name="l00004"></a>00004 <span class="keyword">import</span> java.lang.reflect.Method;
<a name="l00005"></a>00005 
<a name="l00006"></a>00006 <span class="keyword">import</span> android.content.Context;
<a name="l00007"></a>00007 <span class="keyword">import</span> android.util.Log;
<a name="l00008"></a>00008 <span class="keyword">import</span> android.view.MotionEvent;
<a name="l00009"></a>00009 
<a name="l00015"></a><a class="code" href="classgraphview_1_1compatible_1_1_scale_gesture_detector.html">00015</a> <span class="keyword">public</span> <span class="keyword">class </span><a class="code" href="classgraphview_1_1compatible_1_1_scale_gesture_detector.html">ScaleGestureDetector</a> {
<a name="l00016"></a><a class="code" href="interfacegraphview_1_1compatible_1_1_scale_gesture_detector_1_1_simple_on_scale_gesture_listener.html">00016</a>         <span class="keyword">public</span> <span class="keyword">interface </span><a class="code" href="interfacegraphview_1_1compatible_1_1_scale_gesture_detector_1_1_simple_on_scale_gesture_listener.html">SimpleOnScaleGestureListener</a> {
<a name="l00017"></a>00017                 <span class="keywordtype">boolean</span> <a class="code" href="interfacegraphview_1_1compatible_1_1_scale_gesture_detector_1_1_simple_on_scale_gesture_listener.html#a954437c855e97639a4e89b97ae06ef60">onScale</a>(<a class="code" href="classgraphview_1_1compatible_1_1_scale_gesture_detector.html">ScaleGestureDetector</a> detector);
<a name="l00018"></a>00018         }
<a name="l00019"></a>00019 
<a name="l00020"></a><a class="code" href="classgraphview_1_1compatible_1_1_scale_gesture_detector.html#af79fba5ff7110c75ed18743f6599d327">00020</a>         <span class="keyword">private</span> Object <a class="code" href="classgraphview_1_1compatible_1_1_scale_gesture_detector.html#af79fba5ff7110c75ed18743f6599d327">realScaleGestureDetector</a>;
<a name="l00021"></a><a class="code" href="classgraphview_1_1compatible_1_1_scale_gesture_detector.html#a9ba8d50ca565eaf7ec689a72e2a72b2e">00021</a>         <span class="keyword">private</span> Method <a class="code" href="classgraphview_1_1compatible_1_1_scale_gesture_detector.html#a9ba8d50ca565eaf7ec689a72e2a72b2e">method_getScaleFactor</a>;
<a name="l00022"></a><a class="code" href="classgraphview_1_1compatible_1_1_scale_gesture_detector.html#aa62fd83c2e8575c6514335655e6826d7">00022</a>         <span class="keyword">private</span> Method <a class="code" href="classgraphview_1_1compatible_1_1_scale_gesture_detector.html#aa62fd83c2e8575c6514335655e6826d7">method_isInProgress</a>;
<a name="l00023"></a><a class="code" href="classgraphview_1_1compatible_1_1_scale_gesture_detector.html#ab7f8c4abb6940fa14f445cc6636ed95a">00023</a>         <span class="keyword">private</span> Method <a class="code" href="classgraphview_1_1compatible_1_1_scale_gesture_detector.html#ab7f8c4abb6940fa14f445cc6636ed95a">method_onTouchEvent</a>;
<a name="l00024"></a>00024 
<a name="l00029"></a><a class="code" href="classgraphview_1_1compatible_1_1_scale_gesture_detector.html#a331752638957d67b5c50f3cd5dbb1bf4">00029</a>         <span class="keyword">public</span> <a class="code" href="classgraphview_1_1compatible_1_1_scale_gesture_detector.html#a331752638957d67b5c50f3cd5dbb1bf4">ScaleGestureDetector</a>(Context context, <a class="code" href="interfacegraphview_1_1compatible_1_1_scale_gesture_detector_1_1_simple_on_scale_gesture_listener.html">SimpleOnScaleGestureListener</a> simpleOnScaleGestureListener) {
<a name="l00030"></a>00030                 <span class="keywordflow">try</span> {
<a name="l00031"></a>00031                         <span class="comment">// check if class is available</span>
<a name="l00032"></a>00032                         Class.forName(<span class="stringliteral">&quot;android.view.ScaleGestureDetector&quot;</span>);
<a name="l00033"></a>00033 
<a name="l00034"></a>00034                         <span class="comment">// load class and methods</span>
<a name="l00035"></a>00035                         Class&lt;?&gt; classRealScaleGestureDetector = Class.forName(<span class="stringliteral">&quot;com.jjoe64.graphview.compatible.RealScaleGestureDetector&quot;</span>);
<a name="l00036"></a>00036                         <a class="code" href="classgraphview_1_1compatible_1_1_scale_gesture_detector.html#a9ba8d50ca565eaf7ec689a72e2a72b2e">method_getScaleFactor</a> = classRealScaleGestureDetector.getMethod(<span class="stringliteral">&quot;getScaleFactor&quot;</span>);
<a name="l00037"></a>00037                         <a class="code" href="classgraphview_1_1compatible_1_1_scale_gesture_detector.html#aa62fd83c2e8575c6514335655e6826d7">method_isInProgress</a> = classRealScaleGestureDetector.getMethod(<span class="stringliteral">&quot;isInProgress&quot;</span>);
<a name="l00038"></a>00038                         <a class="code" href="classgraphview_1_1compatible_1_1_scale_gesture_detector.html#ab7f8c4abb6940fa14f445cc6636ed95a">method_onTouchEvent</a> = classRealScaleGestureDetector.getMethod(<span class="stringliteral">&quot;onTouchEvent&quot;</span>, MotionEvent.class);
<a name="l00039"></a>00039 
<a name="l00040"></a>00040                         <span class="comment">// create real ScaleGestureDetector</span>
<a name="l00041"></a>00041                         Constructor&lt;?&gt; constructor = classRealScaleGestureDetector.getConstructor(Context.class, getClass(), <a class="code" href="interfacegraphview_1_1compatible_1_1_scale_gesture_detector_1_1_simple_on_scale_gesture_listener.html">SimpleOnScaleGestureListener</a>.class);
<a name="l00042"></a>00042                         <a class="code" href="classgraphview_1_1compatible_1_1_scale_gesture_detector.html#af79fba5ff7110c75ed18743f6599d327">realScaleGestureDetector</a> = constructor.newInstance(context, <span class="keyword">this</span>, simpleOnScaleGestureListener);
<a name="l00043"></a>00043                 } <span class="keywordflow">catch</span> (Exception e) {
<a name="l00044"></a>00044                         <span class="comment">// not available</span>
<a name="l00045"></a>00045                         Log.w(<span class="stringliteral">&quot;com.jjoe64.graphview&quot;</span>, <span class="stringliteral">&quot;*** WARNING *** No scaling available for graphs. Exception:&quot;</span>);
<a name="l00046"></a>00046                         e.printStackTrace();
<a name="l00047"></a>00047                 }
<a name="l00048"></a>00048         }
<a name="l00049"></a>00049 
<a name="l00050"></a><a class="code" href="classgraphview_1_1compatible_1_1_scale_gesture_detector.html#adf7b4ed8dfbc489a51832882442dcbdc">00050</a>         <span class="keyword">public</span> <span class="keywordtype">double</span> <a class="code" href="classgraphview_1_1compatible_1_1_scale_gesture_detector.html#adf7b4ed8dfbc489a51832882442dcbdc">getScaleFactor</a>() {
<a name="l00051"></a>00051                 <span class="keywordflow">if</span> (<a class="code" href="classgraphview_1_1compatible_1_1_scale_gesture_detector.html#a9ba8d50ca565eaf7ec689a72e2a72b2e">method_getScaleFactor</a> != null) {
<a name="l00052"></a>00052                         <span class="keywordflow">try</span> {
<a name="l00053"></a>00053                                 <span class="keywordflow">return</span> (Float) <a class="code" href="classgraphview_1_1compatible_1_1_scale_gesture_detector.html#a9ba8d50ca565eaf7ec689a72e2a72b2e">method_getScaleFactor</a>.invoke(<a class="code" href="classgraphview_1_1compatible_1_1_scale_gesture_detector.html#af79fba5ff7110c75ed18743f6599d327">realScaleGestureDetector</a>);
<a name="l00054"></a>00054                         } <span class="keywordflow">catch</span> (Exception e) {
<a name="l00055"></a>00055                                 e.printStackTrace();
<a name="l00056"></a>00056                                 <span class="keywordflow">return</span> 1.0;
<a name="l00057"></a>00057                         }
<a name="l00058"></a>00058                 }
<a name="l00059"></a>00059                 <span class="keywordflow">return</span> 1.0;
<a name="l00060"></a>00060         }
<a name="l00061"></a>00061 
<a name="l00062"></a><a class="code" href="classgraphview_1_1compatible_1_1_scale_gesture_detector.html#ad84dfbb0bbdb658e69901c523f380247">00062</a>         <span class="keyword">public</span> <span class="keywordtype">boolean</span> <a class="code" href="classgraphview_1_1compatible_1_1_scale_gesture_detector.html#ad84dfbb0bbdb658e69901c523f380247">isInProgress</a>() {
<a name="l00063"></a>00063                 <span class="keywordflow">if</span> (<a class="code" href="classgraphview_1_1compatible_1_1_scale_gesture_detector.html#a9ba8d50ca565eaf7ec689a72e2a72b2e">method_getScaleFactor</a> != null) {
<a name="l00064"></a>00064                         <span class="keywordflow">try</span> {
<a name="l00065"></a>00065                                 <span class="keywordflow">return</span> (Boolean) <a class="code" href="classgraphview_1_1compatible_1_1_scale_gesture_detector.html#aa62fd83c2e8575c6514335655e6826d7">method_isInProgress</a>.invoke(<a class="code" href="classgraphview_1_1compatible_1_1_scale_gesture_detector.html#af79fba5ff7110c75ed18743f6599d327">realScaleGestureDetector</a>);
<a name="l00066"></a>00066                         } <span class="keywordflow">catch</span> (Exception e) {
<a name="l00067"></a>00067                                 e.printStackTrace();
<a name="l00068"></a>00068                                 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00069"></a>00069                         }
<a name="l00070"></a>00070                 }
<a name="l00071"></a>00071                 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00072"></a>00072         }
<a name="l00073"></a>00073 
<a name="l00074"></a><a class="code" href="classgraphview_1_1compatible_1_1_scale_gesture_detector.html#a08ca922b33a9ec497e684eee9c2028b0">00074</a>         <span class="keyword">public</span> <span class="keywordtype">void</span> <a class="code" href="classgraphview_1_1compatible_1_1_scale_gesture_detector.html#a08ca922b33a9ec497e684eee9c2028b0">onTouchEvent</a>(MotionEvent event) {
<a name="l00075"></a>00075                 <span class="keywordflow">if</span> (<a class="code" href="classgraphview_1_1compatible_1_1_scale_gesture_detector.html#ab7f8c4abb6940fa14f445cc6636ed95a">method_onTouchEvent</a> != null) {
<a name="l00076"></a>00076                         <span class="keywordflow">try</span> {
<a name="l00077"></a>00077                                 <a class="code" href="classgraphview_1_1compatible_1_1_scale_gesture_detector.html#ab7f8c4abb6940fa14f445cc6636ed95a">method_onTouchEvent</a>.invoke(<a class="code" href="classgraphview_1_1compatible_1_1_scale_gesture_detector.html#af79fba5ff7110c75ed18743f6599d327">realScaleGestureDetector</a>, event);
<a name="l00078"></a>00078                         } <span class="keywordflow">catch</span> (Exception e) {
<a name="l00079"></a>00079                                 e.printStackTrace();
<a name="l00080"></a>00080                         }
<a name="l00081"></a>00081                 }
<a name="l00082"></a>00082         }
<a name="l00083"></a>00083 }
</pre></div></div><!-- contents -->


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